Thanks for the great info! I believe the problem is due to my 128kpbs
upstream capacity on my DSL. When my webserver starts sending stuff, I
believe the router randomly decided on bandwidth allocation. Tonight I
installed a Linksys BEFSR81 router that lets me prioritize based on which
jack on the back of the router the device is plugged in, the IP of the
device, or the IP ports used. I've set it up to give high priority to the
SIP ports (a couple in the 5,000 range I don't remember the exact number
right now). Seems to be working so far.

THANKS!

Harold


> Hi Harold,
> To get QOS you need it implemented in each network along the way. Normally
> you would put your real time protocols into a separate VLAN with
> appropriate
> QOS for your layer 2 switch etc, next step is the router with appropriate
> header compression to reduce call bandwidth then the most important bit is
> your ISP. Your ISP must support and honour the priority you have placed on
> your voice packets and not drop etc all the way to the other end. The same
> of course applies back the other way. If you are lucky enough to have all
> your ducks lined up then Cisco make some very nice products in this range.
> I
> expect the features required  start to be available in the 17xx series.
>
> But all is not lost, if you have more bandwidth then you use then you
> don't
> need any QOS (but its still recommended). QOS is managed unfairness which
> lets your voice go first.
>
> If your main problem is caused by http traffic then you may get away with
> a
> proxy that you can limit bandwidth on such as Squid.
> The CODEC you use is very important, if you are using G.711 then you
> require
> a lot more available bandwidth then say G.729, roughly 80k versus 25k
> without header compression.
>
> I only have a 64kb Internet connection and run voice calls over it with
> very
> good results most of the time. I haven't implemented any QOS
> (prioritisation) yet.
>
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Harold Hallikainen
> Sent: Friday, 28 May 2004 1:05 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT:] Router recommendations with QOS?
>
>
> Pretty off topic, but this is a smart group...  I'm currently using a
> Linksys BEFSR41 router on my DSL. I have a problem that when there's
> traffic from my web server, upstream voice from my sip phone is
> interrupted. I'm looking at the Linksys BEFSR81 router to prioritize VoIP
> packets to fix this problem. Do any of you have comments on this router or
> have other recommendations?
>
> THANKS!
>
> Harold
>
> --
> FCC Rules Online at http://www.hallikainen.com
>
>
>
> --
> FCC Rules Online at http://www.hallikainen.com
>
> --
> http://www.piclist.com hint: The list server can filter out subtopics
> (like ads or off topics) for you. See http://www.piclist.com/#topics
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>


--
FCC Rules Online at http://www.hallikainen.com

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.